Answer:
347
Step-by-step explanation:
i added them all
Y = total cost
40 = The one time fee
90 = the service charge per month
x = number of months
Answer:
It's choice B.
Step-by-step explanation:
When r= -11,
x^2 + 8x - 33 = (-11)^2 - 88 - 33
= 121 - 88 - 33
= 0
- so x = -11 gives a zero value and is a solution to the equation.
Well you will just subtract 91 - 7 which equals 84.
So 7 + 84 = 91